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Tesla to make EV battery cathodes without cobalt

Illustration by Alex Castro / The Verge

Tesla will make electric vehicle batteries with cobalt-free cathodes, it announced during its Battery Day event today. The announcement came as part of the company’s move to make batteries in-house instead of purchasing them. Musk didn’t give a timeline for going to a zero-cobalt battery.

Cobalt is the most expensive material used in batteries, so eliminating it from the mix was expected help to electric vehicles become as affordable as those that run on gas. Tesla now says it can make a $25,000 electric vehicle — $10,000 less than its cheapest model — because of the improvements it’s made to its batteries, including axing cobalt.

“It’s absolutely critical that we make cars that people can people can actually afford,” Musk said today....

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